Stem winding and setting mechanism for watches.



Patented Apr. I7, |900. L. E. F. WACHTER.

STEM WINDING AND SETTING MECHANISM FOR WATCHES.

(Application le-d Aug. 28, 1899.)

(No Model.)

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TH: ongle PETERS co, PHoraLwHo., wAsHmn'roN. u. c.

TINTTED STATES PATENT OFFICE,

LOUIS E. FRANK IVACHTER, OF HARTFORD, CONNECTICUT, ASSIGNOR OF ONE-HALFTO CHARLES R. HANSEL, OF SAME PLACE.

STENI WlNDING AND SETTING lVlECHANlSlVl FOR WATCHES.

SPECIFICATION forming part f Lett/@TS Patent No. 647,544, dated .April1T, 1900.

Application tiled August 28, 1899. Serial No. 728,676. (No model.)

To all whom it may concern:

Beit known that I, Louis EDWARD FRANK IVACHTER, a subject of the Emperorof Germany, residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in IVatchWinding and Setting Mechanisms,

. of which the following is a specification.

This invention relates to a watch winding and setting mechanism which isadjustable for winding or setting, as desired, by a rotary turn of thebow and pendant sleeve.

The object of this invention is to provide a mechanism of this naturewhich is simple in construction and inexpensive to manufacture, which iseasy to manipulate, which will not become disarranged, and which will bedurable in service.

In the embodiment of the invention which is illustrated in theaccompanying drawings the slide that moves the clutch longitudinally ofthe crown-stem for engaging with the winding-pinion or setting-pinion,as the case maybe,is arranged tobe moved outwardlybya spring andinwardly by a cam on the end of the tubular stem secured to thependant-sleeve, to which the bow is attached. The bow andpendant-sleeve, if forced inwardly, can be rotated, and when the bow isrotated into one plane the cam is turned so that by the spring theclutch is caused to engage the pinion meshing with the mainspring-train, and when the bow is rotated into another plane the cam isturned so the clutch is forced into engagement with a pinion meshingrWith the handtrain.

In the views the invention is represented as applied to a hunting-casewatch.

Figure l is a view of the mechanisms lo0king from the front, with partsof the plates broken away to better show the arrangement. Fig. 2 is aView of the same looking from the back. Fig. Sis a central verticalsection of the pendant, pendant-sleeve, pendant-sleeve stem, crown, andclutch. Fig. et is a sectional view of the pendant-sleeve stem and thependant-sleeve. Fig. 5 is a plan of the end of the pendant, and Fig. 6is a side View of the end of the pendant.

The pendant l is formed on the rim 2 of the case in the usual manner,and in the rim of this hunting-case form, as common, are the spring 3for throwing open the cover, and the spring 4, bearing the catch, forholding the cover shut.

The pendant-sleeve 5 is movable in and out along the end ot' thependant, and when forced in, so that the stud 23 passes from the slot24: into the groove 25 around the end of the pendant, the bow andpendant-sleeve may be rotated. Of course when the stud is in the slotthe pendant-sleeve and bow cannot be rotated. A spring 6 is placed inthe pendant-sleeve and thrusts the pendant-sleeve outwardly, and the endof the pendant may be notched, as may be the bottom of the recess in thependant-sleeve, for the engage ment of the ends of the spring, so as tocause friction, which will hold the pendant-sleeve from rotation untilthe proper force is exerted. v

The tubular-stem 7, secured to the interior of the pendant-sleeve,extends through the pendant into the case, and attached to thesleeve-stem just inside the end of the pendant, so as to prevent theremoval of the sleevestem, is a collar S, that bears acam 9. The cam isof such a small size that it will freely pass through a perforation inthe cover catchspring 4; but the collar is so large that it Will engageand force inwardly this spring When the crown and pendant-sleeve and itsstem are pressed inwardly for allowing the cover to iiy open.

The bow l0 is attached to the pendant-sleeve in the common manner, andover the end of the pendant-sleeve is the usual crown Il, proj ectingfrom which into the case is the crownstem 12. The crown-stem iscylindrical where it passes through the pendant-sleeve stem and cam,so-that itwill rotate freelyin these parts; but near its end thecrown-stem is squared for rotating the crown stem extension 13, whichhas a rectangular socket for receiving the squared end of thecrown-stem.

Free to rotate upon the crown-stem extension is a pinion 14, while uponthe squared part of the extension, so that it may be movedlongitudinally of, but must rotate with, the extension, is a clutch l5.This clutch is provided with teeth at one end arranged to engage withteeth on the hub of the pinion 14E,

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and en the other end the clutch has teeth al ranged to engage with theteeth of the gear lo'.

The pinion le meshes with the gear 17, that is in mesh with a gear 1S,which is adapted to turn a gear attached to the arbor of the mainspring.The gear 1G is adapted to mesh with a pinion connected with thehand-arbor.

The slide lf), that is movably held by screws 20, which turn into thefront plate, is thrust outwardly by a spring 2l. The outer endet thisslide is arranged tc project in the plane of the cam 9, and theprojection 2G from one edge of the slide is arranged te extend into thegroove 22 in the clutch.

Vhen the crown and crownstem are pressed inwardly, the case catch-springis forced in, as usual, so that the cover will open, and thependant-sleeve and bow are moved inwardly, so that they may be rotated;lVith the bow standing as represented in the drawings the pendant-sleeveis so turned and the cam is in such position that the slide is forcedoutwardly to its extreme outward position bythe spring and theclutch-teeth are engaged with the teeth on the hub et the pinion thatmeshes with the winding-train. \Vitl1 the parts in this relationrotating the crown will wind the mainspring. It the bow andpendant-sleeve are turned half around, as they may be al'ter beingpressed inwardly, the cam will torce the slide inwardly and cause theclutch-teeth to be disengaged from the teeth on the hub of thewinding-pinion and te become engaged with the setting-pinion, and thenwhen the crown is rotated the handswill be revolved and may be set toindicate any hour. The spring arranged between the pendantvsleeve andpendant prevents the accidental turning et' the bow.

For an open-face watch otl course the cover opening-spring andcatch-spring are not employed.

By means of the construction described the engagement of the parts forwinding or setting by the crown and crown-stem is aecomplished by asingle inward pressing and then turning of the bow, which is a part thatis convenient to grasp and easy to turn. As the bOw is large enough tobe conveniently grasped and turned, the mechanisms may be arranged veryfirm and stiff, so that they will be durable and cannot lee turnedaccidentally.

I claim my inventionl. A watch winding and setting mechanism, consistingoit' a rotary pendant-sleeve, a rotary bow attached to thependant-sleeve, a cam attached to and rotarily movable with thependant-sleeve and bow, a clutch movable into and out of engagement withthe winding and setting trains, a part adapted to be engaged by the camand engaging thel clutch, a crown at the end of the pendantstem, and acrown-stem ter rotating the clutch, substantially as specified.

2. A watch winding and setting meehanu ism, consisting ot a rotarypendant-sleeve, a rotary bowv attached to the pendant-sleeve, a camattached to and rotarily movable with the pendant-sleeve, a slide inengagement with the cam, a clutch engaged by the slide and. movable into`and out of engagement with the winding and setting trains, a crown atthe end et the pendant-stem, and a crown stem for rotating the clutch,substantially as specified.

A watch winding and setting mechanism, consisting of a rot-arypendant-sleeve, a rotary bow attached to the pendant-sleeve, a camattached to and rotarily movable with the pendant-sleeve, a slide inengagement with the cam, a spring t'or moving the slide outwardly, acrown at the end et' the pendant-sleeve, a crown stem attached to thecrown, a crown-stem extension connected with the crown-stem, a pinionrotatable upon the stem extension, a clutch engaged by the slide andmovable longitudinally ot the stem extension into and out of engagementwith the pinion on the extension, and a pinion at the end el? the stemextension and arranged te be engaged by the clutch, substantially asspecitied.

Lt. A watch winding and setting mechanism, consisting of a rotary andlongitudinally-movable pendantsleeve and bow, a spring for thrusting thependantsleere and bow outwardly, a tubular stem extending inwardly fromthe pendant-sleeve, a cam attached to the end oi the pendant-sleeve, aslide in engagement with the cam, a clutch engaged by the slide, a stemfor rotating the clutch, and a crown `for rotating the stein,substantially as speciiied.

5. A watch winding and setting meehanism, consisting of a rotary andlongitndinally-movable pendant-sleeve and bow, a spring thrusting thependant-sleeve and bow outwardly, a pendant projecting outwardly fromthe rim et the case into the pendantsleeve, a groove in the end ci thependant, a stud extending Yfrom the pendant-sleeve into a slot in thependant, a tubular stem extending inwardly from the pendantsleeve, a camattached to the end of the peinlant-sleeve, a slide in engagement withthe cam, a clutch engaged by the slide, a stem tor rotating the clutch,and a crown for rotating the stem, substantially as specitied.

LOUIS E. FRANK WAGll'llli.

Witnesses:

C. R. ll'ANsnL, ll.. lt. Winmnms,

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